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ian cahr
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icahr
GeoGebra
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Mapping Rectangles into Discs
Simple Bridge (GeoGebra 3D Workshop)
Open Middle: Graphing Linear Inequalities (4)
Paradoxes on π
Umbrella Holder
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TrigRatiosToggleSine
Transformation art
Mean of AB and CD
proj_vect_on_u_invers_u.uv.uv_reference_nickel
Ratios and Rates with Fractions: IM 7.4.2
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Incircle or Inscribed Circle
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Rectangle
Cylinder
Linear Equations